Quality First

Quality Built Into Every Process

At SR International, years of experience have reinforced one principle: quality must be designed, monitored, and verified at every stage. Our strict in-house quality monitoring systems enable us to meet stringent and exacting international standards.

Quality control begins at the raw material stage and continues through production, testing, and final dispatch. We operate a fully equipped laboratory located close to our manufacturing unit, ensuring immediate testing, faster decision-making, and consistent batch quality.

Immediate Testing

Fast
Decisions

Consistent Quality

Advanced In-House Laboratory

Our in-house laboratory is equipped with modern analytical instruments, enabling accurate testing of both incoming materials and finished Zinc Oxide.

High-Precision Elemental Analysis

We use a Thermo Fisher iCAP-Pro XP ICP-OES spectroscope for detailed elemental analysis.

Trace Elements (sub-ppm)	Major Elements (% levels)
Cadmium (Cd)	Zinc (Zn)
Manganese (Mn)	Iron (Fe)
Copper (Cu)	Lead (Pb)

Sample Preparation: Hotplate acid digestion method with controlled sample handling for analytical accuracy.

Quality Assurance & Testing Protocols

Every batch of Zinc Oxide is tested against defined specifications through a structured testing program, including:

Purity Tests
Assay Tests
Moisture Content Tests
Heavy Metal & Other Impurity Tests
Physical Appearance & Consistency Checks

Only materials that fully comply with approved parameters are released for dispatch.

Research & Development (R&D)

Improving Today. Developing Tomorrow.

Our dedicated R&D department works closely with Quality Assurance to:

Maintain consistent product quality
Develop improved and application-specific Zinc Oxide grades
Support customers with customized requirements

An in-house testing facility is always available to our quality and R&D teams, ensuring continuous improvement alongside consistency.

Third-Party Quality Verification

In addition to in-house testing, selected products undergo third-party quality checks.

This additional verification layer provides:

Independent validation
Enhanced customer confidence
Alignment with international buyer expectations

Batch Traceability & Documentation

Rigorous testing is supported by comprehensive data capture:

Batch-wise test records
Full forward and backward traceability
Certificate of Analysis (COA) with every dispatch
Retention samples for reference

Quality Management System

ISO 9001:2015 compliant Quality Management System

Documented procedures for:

Raw material approval
Production control
Testing and release
Corrective & preventive actions

Our system is designed to meet the expectations of regulated and performance-driven industries.

Environmental Responsibility

Quality That Respects The Environment

Environmental responsibility is a top priority at SR International. All manufacturing and quality processes conform to applicable environmental regulations and follow international environmental standards.

We operate an integrated waste management system comprising:

Primary treatment Secondary treatment Tertiary treatment

All liquid and solid wastes are disposed of in an environmentally safe and legally compliant manner, ensuring protection of both human welfare and the environment.

Our Commitment

✓ Strict in-house quality control
✓ Advanced analytical testing
✓ Responsible sourcing of raw materials
✓ Environmental compliance
✓ Continuous improvement

Because quality is not a claim. It is a discipline — measured, documented, and delivered.

Quality Control & Assurance